--- a
+++ b/singlecellmultiomics/modularDemultiplexer/demultiplexModules/MSPJI.py
@@ -0,0 +1,23 @@
+from singlecellmultiomics.modularDemultiplexer.baseDemultiplexMethods import UmiBarcodeDemuxMethod
+
+# MSPJI with 3bp UMI
+
+
+class MSPJI_c8_u3(UmiBarcodeDemuxMethod):
+    def __init__(self, barcodeFileParser, **kwargs):
+        self.barcodeFileAlias = 'maya_mspj1'
+        UmiBarcodeDemuxMethod.__init__(
+            self,
+            umiRead=0,
+            umiStart=0,
+            umiLength=3,
+            barcodeRead=0,
+            barcodeStart=3,
+            barcodeLength=8,
+            barcodeFileAlias=self.barcodeFileAlias,
+            barcodeFileParser=barcodeFileParser,
+            **kwargs)
+        self.shortName = 'MSPJIC8U3'
+        self.longName = 'MSPJI, CB: 8bp UMI: 3bp'
+        self.autoDetectable = True
+        self.description = 'MSPJI barcoded fragments. 3bp umi followed by 8bp cell barcode.'